Commit b7e7080b authored by Mao Minkai's avatar Mao Minkai Committed by guzitao
Browse files

sw64: remove useless local r26 in setup_rt_frame() 

Sunway inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5XTGY



--------------------------------

Signed-off-by: default avatarMao Minkai <maominkai@wxiat.com>
Reviewed-by: default avatarHe Sheng <hesheng@wxiat.com>
Signed-off-by: default avatarGu Zitao <guzitao@wxiat.com>
parent 36789fd4

arch/sw_64/kernel/signal.c

+2 −7
Original line number Diff line number Diff line
@@ -261,7 +261,7 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, 
static int

setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)

{

	unsigned long oldsp, r26, err = 0;

	unsigned long oldsp, err = 0;

	struct rt_sigframe __user *frame;



	oldsp = rdusp();
@@ -283,13 +283,8 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) 
	if (err)

		return -EFAULT;



	/* Set up to return from userspace.  If provided, use a stub

	 * already in userspace.

	 */

	r26 = VDSO_SYMBOL(current->mm->context.vdso, rt_sigreturn);



	/* "Return" to the handler */

	regs->r26 = r26;

	regs->r26 = VDSO_SYMBOL(current->mm->context.vdso, rt_sigreturn);

	regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler;

	regs->r16 = ksig->sig;                    /* a0: signal number */

	if (ksig->ka.sa.sa_flags & SA_SIGINFO) {